Solid block chemical dispenser for cleaning systems.

摘要

A dispenser for dispensing a concentrated cleaning solution from a solid block of a cleaning composition; the dispenser configured to provide the concentrated cleaning solution at a substantially constant concentration during the entire useful life of the solid block of cleaning composition. The dispenser includes (i) a spray means for directing a uniform dissolving spray onto an exposed surface of the solid block of cleaning composition; and (ii) a positioning means for maintaining a substantially constant distance between the spray means and the exposed surface of the solid block of cleaning composition as the exposed surface recedes due to dissolution by the dissolving spray. In the preferred embodiment the dispenser includes a housing for the solid block and water flow to the spray means is automatically controlled by a spray control valve. Optionally, a concentrated solution pump and a concentrated solution level indicator may be employed. Also optionally, a safety control switch may be employed to sense the operative position of a door covering access to the cavity created by the dispenser housing and prevent spray from the spray means whenever the door is not in its closed position.